MIRATECH Spiral Chamber | Cylindrical Engine Silencers

Cowl Silencers

MIRATECH’s Cowl silencers feature a unique single spiral chamber design that allows a free flow of exhaust gas throughout the entire spiral chamber.  The benefits of the Cowl® spiral chamber are high sound attenuation, very low exhaust back pressure, and a very small package size.  Typically, Cowl silencers are approximately 1/3 the physical size and 1/2 the weight of conventional cylindrical silencers of similar performance.

Cowl Silencers feature residential grade attenuation (22 – 28 dB) in sizes from 1” up to 12” inlet diameter. Aluminized steel is standard construction and stainless steel in 304, 316, and 321 grades is available as an option. Cowl silencers are available in several standard inlet/outlet configurations as well as standard choices for various connection types.
Cowl Silencers feature an extended spiral chamber design which results in critical grade sound attenuation performance in the 28 – 33 dB range. The TSC series are also available in several inlet/outlet configurations and various connection types.
Cowl Silencers feature an extended spiral chamber design which results in hospital grade sound attenuation performance in the 33 – 38 dB range. The TSH series are also available in several inlet/outlet configurations and various connection types.
This is a special Cowl “hybrid” design that combines spiral chamber technology with reactive chamber sound attenuation principles. The result is a super-compact silencer exhibits high performing sound attenuation. MicroDisks are available from 1” up to 2-1/2” inlet size.